[    1.714261] ip (245) used greatest stack depth: 12392 bytes left
[    1.905999] ip (257) used greatest stack depth: 12344 bytes left
[    5.257540] ip (537) used greatest stack depth: 12072 bytes left
[   41.795879] ip (1880) used greatest stack depth: 12056 bytes left
[   49.821555] netem: version 1.3
[  580.667875] tc (11911) used greatest stack depth: 11872 bytes left